Terminological information is a key element in the construction of a knowledge base. In order for a knowledge base to be useful to different users, terminological information should be extracted from corpora so as to reflect the different pragmatic nuances. Puertoterm is a knowledge base in the field of Coastal Engineering, which has made use of corpus information to develop terminological entries. It also includes contextual information in such a way that this information interacts with other elements of the knowledge base. We describe the methodology followed in the project regarding corpus design, retrieval of lexical information, conceptual organization of the domain of Coastal Engineering, and the elaboration of terminological entries.